CN202111098U - Circuit breaker for solar module string - Google Patents
Circuit breaker for solar module string Download PDFInfo
- Publication number
- CN202111098U CN202111098U CN2011201634114U CN201120163411U CN202111098U CN 202111098 U CN202111098 U CN 202111098U CN 2011201634114 U CN2011201634114 U CN 2011201634114U CN 201120163411 U CN201120163411 U CN 201120163411U CN 202111098 U CN202111098 U CN 202111098U
- Authority
- CN
- China
- Prior art keywords
- tripping device
- solar module
- release
- circuit breaker
- module string
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
Images
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/50—Photovoltaic [PV] energy
Landscapes
- Breakers (AREA)
Abstract
The utility model discloses a circuit breaker for solar module string, which comprises a main contact (1), a free tripping device (2), a logic AND mechanism (3), an overcurrent tripping device (4), an undervoltage tripping device (5), a reversed-connection tripping device (6), a manual switching-on device (7), a manual tripping device (8), a shunt tripping device (9) and an overvoltage tripping device (10). The overcurrent tripping device (4) and the undervoltage tripping device (5) are connected with the free tripping device (2) through the logic AND mechanism (3). The reversed-connection tripping device (6), the manual tripping device (8), the switching-on device (7), the shunt tripping device (9) and the overvoltage tripping device (10) are respectively connected with the free tripping device (2) in connection with the main contact (1). The circuit breaker is capable of rapidly judging faults of reversed connection, short circuit, excess voltage and the like of solar module string, effectively cutting circuits of the solar module string to protect components and cables, and preventing fires caused by electric arc. Furthermore, the circuit breaker has functions of manual switching on and switching off and remote controlling of switching off. The protecting way adopted by the circuit breaker enables the overcurrent tripping device to jointly operate with the undervoltage tripping device when the circuits of the solar module string are short-circuited, and the main contact is triggered and cut off by the aid of the logic AND mechanism. In addition, action threshold value of the overcurrent tripping device and action threshold value of the undervoltage tripping device are determined according to a normal range of the solar module string.
Description
Technical field
The utility model relates to solar photovoltaic technology, low voltage electrical apparatus technology, and particularly a kind of circuit breaker and guard method that is used for the solar module string can be widely used in the renewable energy system of all kinds of use solar components.
Background technology
At global warming, under the urgent situation of Ecological environment worsening and conventional energy resource shortage of resources, be that the renewable energy power generation technology that core makes up obtains fast development and application with all kinds of solar components.But in the solar power station of going into operation, the fire generation that the electric fault of solar components string direct current system is often arranged and cause.Original solar components protection equipment and counnter attack exist defective and deficiency; One of reason is to be not sure of short circuit and draws faults such as electric arc and cut-out group serializer circuit; Cause cable, equipment or assembly to damage; Reduce the utilance of solar energy resources, produced serious economy loss, influenced the promotion and application of solar tracking system.
Summary of the invention
To the problems referred to above; The utility model provides a kind of circuit breaker that is used for the solar module string; Can judge faults such as the reversal connection of solar battery group string, short circuit, overvoltage fast; Effectively cut off the solar battery group serializer circuit, protection assembly and cable, prevent electric arc and cause manual divide-shut brake function is arranged the generation of fire in addition, match the remote control cut-out function.
A kind of circuit breaker that is used for the solar module string; It is characterized in that comprising overcurrent release, device for under-voltage releasing equipment, logical AND mechanism, connect anti-release, hand trip gear, closing by hand device, shunt release, trip free device and main contacts, wherein overcurrent release, device for under-voltage releasing equipment are connected with the trip free device through logical AND mechanism; Connecing anti-release, hand trip gear, closing by hand device, shunt release, overvoltage release is connected with the trip free device respectively; The trip free device is connected with main contacts.
Described shunt release is the parts of matching according to instructions for use, can move through control line Long-distance Control shunt release, and then trigger the action of trip free device and the cut-out main contacts.
A kind of breaker protection method that is used for the solar module string; Said logical AND mechanism, device for under-voltage releasing equipment, connect anti-release, hand trip gear, closing by hand device, shunt release and overvoltage release and cuts off main contacts, protect the solar module string through triggering the action of trip free device.
A kind of guard method that is used for the circuit breaker of solar module string; When the solar components serializer circuit is short-circuited; The group crosstalk is flow through and is caused that overcurrent release moves; The group crosstalk is pressed under-voltage and is caused that device for under-voltage releasing equipment action, overcurrent release, device for under-voltage releasing equipment trigger the action of trip free device and cut off main contacts through logical AND mechanism; When flowing release action and device for under-voltage releasing equipment single movement, can not trigger the action of trip free device and cut off main contacts, avoid misoperation when solar module string operate as normal.
Be used for the guard method of the circuit breaker of solar module string; Be furnished with the reversal connection release, when the reversal connection of solar module string both positive and negative polarity, or when backward current occurring; The reversal connection release triggers the action of trip free device and cuts off main contacts, protection solar module string.
Be used for the guard method of the circuit breaker of solar module string, be furnished with the overvoltage release, when solar module voltage exceeds normal range (NR), the overvoltage release triggers the action of trip free device and cuts off main contacts, protection solar module string.
Be used for the guard method of the circuit breaker of solar module string, be furnished with hand trip gear, closing by hand device, can manual deciliter circuit breaker, make things convenient for the solar module string to install and maintenance.
The useful achievement of the utility model is to be to carry out triggering the protection of circuit breaker realization solar module string short trouble behind the logical through overcurrent release, device for under-voltage releasing equipment; And the consideration installation requirement, strengthened the fail safe and the reliability of solar power generation.
Description of drawings
Fig. 1 is the system principle diagram of the utility model.
Fig. 2 is that the circuit breaker of the utility model is to solar components string protection range figure.
Embodiment
For inner characteristic and the beneficial effect that makes the utility model is easier to understand, it is elaborated below in conjunction with instance and accompanying drawing.
Fig. 1 shows a kind of principle flow chart that is used for the circuit breaker of solar module string of the utility model.As shown in the figure, the circuit breaker of the utility model comprises: main contacts 1, trip free device 2, logical AND mechanism 3, overcurrent release 4, device for under-voltage releasing equipment 5, connect anti-release 6, closing by hand device 7, hand trip gear 8, shunt release 9 and overvoltage release 10.Overcurrent release 4, device for under-voltage releasing equipment 5 are connected with trip free device 2 through logical AND mechanism 3; Connecing anti-release 6, hand trip gear 8, closing by hand device 7, shunt release 9, overvoltage release 10 is connected with trip free device 2 respectively; Trip free device 2 is connected with main contacts 1.
The solar module string is connected in series with circuit breaker.As shown in Figure 2, when solar components serializer circuit failed because, when solar components string working point got into the short-circuit protection district, the group crosstalk was flow through and is caused that overcurrent release 4 moves, and the group crosstalk is pressed under-voltage and caused device for under-voltage releasing equipment 5 actions; Overcurrent release 4, device for under-voltage releasing equipment 5 carries out AND-operation through logical AND mechanisms 3, then logical consequence and trigger 2 actions of trip free device and cut off main contacts 1 in view of the above.When overcurrent release 4 and device for under-voltage releasing equipment 5 single movements, can not trigger 2 actions of trip free device and cut off main contacts 1, avoid misoperation when solar module string operate as normal.Overcurrent release 4 action threshold values should be less than the minimum value of solar components string running current scope; Device for under-voltage releasing equipment 5 action threshold values should be less than the minimum value of solar components string normal working voltage scope.
When the reversal connection of solar components string both positive and negative polarity when circuit constitutes the loop or solar components crossfire when crossing backward current; Solar components string as shown in Figure 2 working point gets into the reverse connecting protection district; Reversal connection release 5 triggers 2 actions of trip free device and cuts off main contacts 1, protection solar module string.
As shown in Figure 2, when solar module voltage exceeds normal range (NR), when getting into the overvoltage protection district, overvoltage release 10 triggers 2 actions of trip free devices and cuts off main contactss 1, protection solar module string.
When the solar components string is installed or overhauled, can use hand trip gear 8 to trigger 2 actions of trip free device and cut-out main contacts 1; Can use closing by hand device 7, trigger 2 actions of trip free device and closed main contacts 1.And then reach the purpose of protection solar components string and operator safety.
Further, a kind of circuit breaker that is used for the solar module string of the utility model can be matched remote control separating brake function.Shunt release 9 is the parts according to the instructions for use apolegamy.Can move through control line Long-distance Control shunt release 9, and then trigger 2 actions of trip free device and cut off main contacts 1, realize the function of Long-distance Control circuit breaker disjunction.
Claims (2)
1. circuit breaker that is used for the solar module string; It is characterized in that comprising: main contacts (1), trip free device (2), logical AND mechanism (3), overcurrent release (4), device for under-voltage releasing equipment (5), connect anti-release (6), closing by hand device (7), hand trip gear (8) and shunt release (9), overvoltage release (10), overcurrent release (4), device for under-voltage releasing equipment (5) are connected with trip free device (2) through logical AND mechanism (3); Connecing anti-release (6), hand trip gear (8), closing by hand device (7), shunt release (9), overvoltage release (10) is connected with trip free device (2) respectively; Trip free device (2) is connected with main contacts (1).
2. a kind of circuit breaker that is used for the solar module string according to claim 1; It is characterized in that: said shunt release (9) is the parts according to the instructions for use apolegamy; Move through control line Long-distance Control shunt release (9); And then trigger trip free device (2) action and cut-out main contacts (1), realize the function of Long-distance Control circuit breaker disjunction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201634114U CN202111098U (en) | 2011-05-20 | 2011-05-20 | Circuit breaker for solar module string |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201634114U CN202111098U (en) | 2011-05-20 | 2011-05-20 | Circuit breaker for solar module string |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202111098U true CN202111098U (en) | 2012-01-11 |
Family
ID=45436552
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011201634114U Expired - Lifetime CN202111098U (en) | 2011-05-20 | 2011-05-20 | Circuit breaker for solar module string |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202111098U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102867712A (en) * | 2011-05-20 | 2013-01-09 | 中环光伏系统有限公司 | Breaker for solar cell component string and protecting method |
| CN104883122A (en) * | 2015-06-02 | 2015-09-02 | 江苏四叶草新能源科技有限公司 | Distributed photovoltaic grid-connected intelligent protector with function of automatic switching-on after the existence of voltage is detected |
| CN105185856A (en) * | 2015-06-29 | 2015-12-23 | 北京天诚同创电气有限公司 | Automatic battery board splitting device and battery board series array |
-
2011
- 2011-05-20 CN CN2011201634114U patent/CN202111098U/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102867712A (en) * | 2011-05-20 | 2013-01-09 | 中环光伏系统有限公司 | Breaker for solar cell component string and protecting method |
| CN104883122A (en) * | 2015-06-02 | 2015-09-02 | 江苏四叶草新能源科技有限公司 | Distributed photovoltaic grid-connected intelligent protector with function of automatic switching-on after the existence of voltage is detected |
| CN104883122B (en) * | 2015-06-02 | 2017-12-05 | 江苏四叶草新能源科技有限公司 | There is the grid-connected intellective protector of distributed photovoltaic of pressure automatic switching-in function with inspection |
| CN105185856A (en) * | 2015-06-29 | 2015-12-23 | 北京天诚同创电气有限公司 | Automatic battery board splitting device and battery board series array |
| CN105185856B (en) * | 2015-06-29 | 2017-06-09 | 北京天诚同创电气有限公司 | Automatic battery board splitting device and battery board series array |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106099866B (en) | Circuit breaker operation mechanism protective device with short message sending function | |
| CN201966578U (en) | Arc extinguishing type electrical fireproof short circuit protection device | |
| CN202102997U (en) | Intelligent circuit breaker for solar cell module string | |
| CN103354352A (en) | Distributed intelligence based power distribution network safety protection method | |
| CN102867712A (en) | Breaker for solar cell component string and protecting method | |
| CN202111098U (en) | Circuit breaker for solar module string | |
| CN202888955U (en) | Lightning protection and double-alternating-current power switching device | |
| CN201877786U (en) | Undervoltage release protection device | |
| CN202111031U (en) | Electronic type circuit breaker for solar battery pack string | |
| CN102868148B (en) | For Intelligent circuit breaker and the guard method of solar module string | |
| CN203368014U (en) | Soft start protection device and compressor diagnosis protection device comprising same | |
| CN201674281U (en) | Electrical leakage protector with wireless communication function | |
| CN201562946U (en) | Protective reclosing device of 110kV line microcomputer | |
| CN205017000U (en) | Power plant earth fault protection device | |
| CN103855690A (en) | Power-off releaser circuit used for auto-reclosing switch | |
| CN202721433U (en) | Leakage protection and power supply recovery apparatus | |
| CN102789932A (en) | Electronic circuit breaker for solar cell module string and protection method | |
| CN208955642U (en) | A kind of integrated-type residual current action breaker | |
| CN207442421U (en) | A kind of microcomputer protecting device | |
| CN201946966U (en) | Partitioned power supply protection device of communication equipment | |
| CN203825144U (en) | Circuit for identifying broken line area of switch control circuit | |
| CN102761096A (en) | Undervoltage-overvoltage protection device and method | |
| CN204947581U (en) | A kind of station service cuts decision logic circuit soon | |
| CN201898325U (en) | Intelligent recloser in power distribution network | |
| CN2924779Y (en) | Disconnecting switch with overvoltage-undervoltage protection function |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| DD01 | Delivery of document by public notice |
Addressee: GCL Solar System Limited Document name: Notification that Application Deemed not to be Proposed |
|
| ASS | Succession or assignment of patent right |
Owner name: NANJING CNI23 ENERGY ENGINEERING CO., LTD. Free format text: FORMER OWNER: GCL SOLAR CO., LTD. Effective date: 20130801 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 210000 NANJING, JIANGSU PROVINCE TO: 210008 NANJING, JIANGSU PROVINCE |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20130801 Address after: 43, building 1, 210008 Zhujianglu Road, Xuanwu District, Jiangsu, Nanjing Patentee after: Nanjing CNI23 Energy Engineering Co., Ltd. Address before: 210000 Jiangning Province Economic and Technological Development Zone, Jiangsu City, No. Sheng Tai Road, No. 68 Patentee before: GCL Solar System Limited |
|
| CX01 | Expiry of patent term |
Granted publication date: 20120111 |
|
| CX01 | Expiry of patent term |